[libvirt] [PATCH] Avoid GCC extensions

[john.levon at sun.com]

# HG changeset patch
# User john.levon at sun.com
# Date 1229367890 28800
# Node ID 6a8e82d7d2e166880fed8d7ad860a3e2e93d62be
# Parent  c324c231c6a50be9f970f0f6c6d1629a7c09ab3b
Avoid GCC extensions

Anonymous unions are not portable, nor are zero-sizes structures.

Signed-off-by: John Levon <john.levon at sun.com>

diff --git a/src/domain_conf.c b/src/domain_conf.c
--- a/src/domain_conf.c
+++ b/src/domain_conf.c
@@ -1437,7 +1437,7 @@ virDomainHostdevSubsysUsbDefParseXML(vir
 
                 if (vendor) {
                     if (virStrToLong_ui(vendor, NULL, 0,
-                                        &def->source.subsys.usb.vendor) < 0) {
+                                        &def->source.subsys.u.usb.vendor) < 0) {
                         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
                                  _("cannot parse vendor id %s"), vendor);
                         VIR_FREE(vendor);
@@ -1454,7 +1454,7 @@ virDomainHostdevSubsysUsbDefParseXML(vir
 
                 if (product) {
                     if (virStrToLong_ui(product, NULL, 0,
-                                        &def->source.subsys.usb.product) < 0) {
+                                        &def->source.subsys.u.usb.product) < 0) {
                         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
                                             _("cannot parse product %s"), product);
                         VIR_FREE(product);
@@ -1472,7 +1472,7 @@ virDomainHostdevSubsysUsbDefParseXML(vir
                 bus = virXMLPropString(cur, "bus");
                 if (bus) {
                     if (virStrToLong_ui(bus, NULL, 0,
-                                        &def->source.subsys.usb.bus) < 0) {
+                                        &def->source.subsys.u.usb.bus) < 0) {
                         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
                                              _("cannot parse bus %s"), bus);
                         VIR_FREE(bus);
@@ -1488,7 +1488,7 @@ virDomainHostdevSubsysUsbDefParseXML(vir
                 device = virXMLPropString(cur, "device");
                 if (device) {
                     if (virStrToLong_ui(device, NULL, 0,
-                                        &def->source.subsys.usb.device) < 0)  {
+                                        &def->source.subsys.u.usb.device) < 0)  {
                         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
                                              _("cannot parse device %s"),
                                              device);
@@ -1510,14 +1510,14 @@ virDomainHostdevSubsysUsbDefParseXML(vir
         cur = cur->next;
     }
 
-    if (def->source.subsys.usb.vendor == 0 &&
-        def->source.subsys.usb.product != 0) {
+    if (def->source.subsys.u.usb.vendor == 0 &&
+        def->source.subsys.u.usb.product != 0) {
         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
             "%s", _("missing vendor"));
         goto out;
     }
-    if (def->source.subsys.usb.vendor != 0 &&
-        def->source.subsys.usb.product == 0) {
+    if (def->source.subsys.u.usb.vendor != 0 &&
+        def->source.subsys.u.usb.product == 0) {
         virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR,
             "%s", _("missing product"));
         goto out;
@@ -2951,15 +2951,15 @@ virDomainHostdevDefFormat(virConnectPtr 
     virBufferVSprintf(buf, "    <hostdev mode='%s' type='%s'>\n", mode, type);
     virBufferAddLit(buf, "      <source>\n");
 
-    if (def->source.subsys.usb.vendor) {
+    if (def->source.subsys.u.usb.vendor) {
         virBufferVSprintf(buf, "        <vendor id='0x%.4x'/>\n",
-                          def->source.subsys.usb.vendor);
+                          def->source.subsys.u.usb.vendor);
         virBufferVSprintf(buf, "        <product id='0x%.4x'/>\n",
-                          def->source.subsys.usb.product);
+                          def->source.subsys.u.usb.product);
     } else {
         virBufferVSprintf(buf, "        <address bus='%d' device='%d'/>\n",
-                          def->source.subsys.usb.bus,
-                          def->source.subsys.usb.device);
+                          def->source.subsys.u.usb.bus,
+                          def->source.subsys.u.usb.device);
     }
 
     virBufferAddLit(buf, "      </source>\n");
diff --git a/src/domain_conf.h b/src/domain_conf.h
--- a/src/domain_conf.h
+++ b/src/domain_conf.h
@@ -307,12 +307,13 @@ struct _virDomainHostdevDef {
                      unsigned slot;
                      unsigned function;
                 } pci;
-            };
+            } u;
         } subsys;
         struct {
             /* TBD: struct capabilities see:
              * https://www.redhat.com/archives/libvir-list/2008-July/msg00429.html
              */
+            int dummy;
         } caps;
     } source;
     char* target;
diff --git a/src/qemu_conf.c b/src/qemu_conf.c
--- a/src/qemu_conf.c
+++ b/src/qemu_conf.c
@@ -1264,15 +1264,15 @@ int qemudBuildCommandLine(virConnectPtr 
 
         if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
             hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
-            if(hostdev->source.subsys.usb.vendor) {
+            if(hostdev->source.subsys.u.usb.vendor) {
                     ret = asprintf(&usbdev, "host:%.4x:%.4x",
-                               hostdev->source.subsys.usb.vendor,
-                               hostdev->source.subsys.usb.product);
+                               hostdev->source.subsys.u.usb.vendor,
+                               hostdev->source.subsys.u.usb.product);
 
             } else {
                     ret = asprintf(&usbdev, "host:%.3d.%.3d",
-                               hostdev->source.subsys.usb.bus,
-                               hostdev->source.subsys.usb.device);
+                               hostdev->source.subsys.u.usb.bus,
+                               hostdev->source.subsys.u.usb.device);
             }
             if (ret < 0) {
                 usbdev = NULL;
diff --git a/src/qemu_driver.c b/src/qemu_driver.c
--- a/src/qemu_driver.c
+++ b/src/qemu_driver.c
@@ -2790,14 +2790,14 @@ static int qemudDomainAttachHostDevice(v
         return -1;
     }
 
-    if (dev->data.hostdev->source.subsys.usb.vendor) {
+    if (dev->data.hostdev->source.subsys.u.usb.vendor) {
         ret = asprintf(&cmd, "usb_add host:%.4x:%.4x",
-                       dev->data.hostdev->source.subsys.usb.vendor,
-                       dev->data.hostdev->source.subsys.usb.product);
+                       dev->data.hostdev->source.subsys.u.usb.vendor,
+                       dev->data.hostdev->source.subsys.u.usb.product);
     } else {
         ret = asprintf(&cmd, "usb_add host:%.3d.%.3d",
-                       dev->data.hostdev->source.subsys.usb.bus,
-                       dev->data.hostdev->source.subsys.usb.device);
+                       dev->data.hostdev->source.subsys.u.usb.bus,
+                       dev->data.hostdev->source.subsys.u.usb.device);
     }
     if (ret == -1) {
         qemudReportError(dom->conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL);
diff --git a/src/remote_internal.c b/src/remote_internal.c
--- a/src/remote_internal.c
+++ b/src/remote_internal.c
@@ -649,7 +649,7 @@ doRemoteOpen (virConnectPtr conn,
         if (username) nr_args += 2; /* For -l username */
         if (no_tty) nr_args += 5;   /* For -T -o BatchMode=yes -e none */
 
-        command = command ? : strdup ("ssh");
+        command = command ? command : strdup ("ssh");
         if (command == NULL)
             goto out_of_memory;